title: Changes in sensory-cognitive input: effects on cerebral blood flow.
abstract: Eight healthy right-handed young men were subjected to local CBF measurement by [15O]water and positron emission tomography during partial sensory deprivation and during sensory-cognitive activation; physiological, hormonal, and subjective stress measurements were also performed. Results indicated that (a) "whole-brain" CBF increased during activation; (b) the greatest increase in CBF was in the primary visual cortex; (c) differences between hemispheres were not observed, but CBF was greater anteriorly than posteriorly in the deprivation condition only; (d) within-subject variability of CBF was not influenced by the sensory-cognitive condition; and (e) the procedure was not stressful.
authors.affiliation: Department of Psychiatry, University of Michigan Medical Center, Ann Arbor 48109-0722.
authors.forename: O G
authors.initials: OG
authors.lastname: Cameron
authors.forename: J G
authors.initials: JG
authors.lastname: Modell
authors.forename: R D
authors.initials: RD
authors.lastname: Hichwa
authors.forename: B W
authors.initials: BW
authors.lastname: Agranoff
authors.forename: R A
authors.initials: RA
authors.lastname: Koeppe
mesh_terms: D000328:Adult; D001794:Blood Pressure; D002395:Catecholamines / Q000097:blood; D002560:Cerebrovascular Circulation / Q000502:physiology*; D003071:Cognition / Q000502:physiology*; D006801:Humans; D008297:Male; D012677:Sensation / Q000502:physiology*; D013223:Statistics as Topic; D014793:Visual Cortex / Q000098:blood supply
chemical_list: D002395:Catecholamines